Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test Physics Gravitation Acceleration due to gravity of the earth
If the radius of earth is reduced to half by keeping its mass constant, then acceleration due to gravity becomes-
1
half
2
4 times
3
one fourth
4
More than one of the above
5
None of the above